JPS5976504A - Production of reverse osmotic membrane - Google Patents
Production of reverse osmotic membraneInfo
- Publication number
- JPS5976504A JPS5976504A JP18637082A JP18637082A JPS5976504A JP S5976504 A JPS5976504 A JP S5976504A JP 18637082 A JP18637082 A JP 18637082A JP 18637082 A JP18637082 A JP 18637082A JP S5976504 A JPS5976504 A JP S5976504A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- porous
- monomer
- mixture
- reverse osmosis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 230000003204 osmotic effect Effects 0.000 title abstract description 4
- 239000000178 monomer Substances 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000003999 initiator Substances 0.000 claims abstract description 7
- 238000001223 reverse osmosis Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims 1
- 229920006255 plastic film Polymers 0.000 claims 1
- 230000001588 bifunctional effect Effects 0.000 abstract description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 229920006254 polymer film Polymers 0.000 abstract description 3
- PIZHFBODNLEQBL-UHFFFAOYSA-N 2,2-diethoxy-1-phenylethanone Chemical compound CCOC(OCC)C(=O)C1=CC=CC=C1 PIZHFBODNLEQBL-UHFFFAOYSA-N 0.000 abstract description 2
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 abstract description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 abstract description 2
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 abstract 1
- 239000003504 photosensitizing agent Substances 0.000 abstract 1
- -1 polypropylene Polymers 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XFCMNSHQOZQILR-UHFFFAOYSA-N 2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOC(=O)C(C)=C XFCMNSHQOZQILR-UHFFFAOYSA-N 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- MSAHTMIQULFMRG-UHFFFAOYSA-N 1,2-diphenyl-2-propan-2-yloxyethanone Chemical compound C=1C=CC=CC=1C(OC(C)C)C(=O)C1=CC=CC=C1 MSAHTMIQULFMRG-UHFFFAOYSA-N 0.000 description 1
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- 125000003006 2-dimethylaminoethyl group Chemical group [H]C([H])([H])N(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229910014299 N-Si Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- DIUWKIIUUNWJHU-UHFFFAOYSA-N [4-(3-oxo-3-phenylprop-1-enyl)phenyl] 2-methylprop-2-enoate Chemical compound C1=CC(OC(=O)C(=C)C)=CC=C1C=CC(=O)C1=CC=CC=C1 DIUWKIIUUNWJHU-UHFFFAOYSA-N 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 229940024874 benzophenone Drugs 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 1
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 230000000649 photocoagulation Effects 0.000 description 1
- 125000004193 piperazinyl group Chemical group 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Description
【発明の詳細な説明】
不発明は、逆浸透膜の製造方法、さらに詳しくは、単量
体を多孔性支持膜中に含浸させ光重合させることにより
一段で逆浸透膜を製造する方法に関するものである。Detailed Description of the Invention The invention relates to a method for producing a reverse osmosis membrane, more specifically, a method for producing a reverse osmosis membrane in one step by impregnating a monomer into a porous support membrane and photopolymerizing it. It is.
従来、逆浸透用複合膜は、逆浸透性を示す重合体を製造
し、これを多孔性膜にキャストする方法で一般に製造さ
れている。この方法は・単量体をいったん重合させて逆
浸透性を有する重合体を合成し、再沈でん、精製したの
ち、溶媒に溶解させてキャスティング溶液を調製し、こ
れを支持膜上べ塗布し乾燥するもので、多くの煩雑な工
程を心安とするものである。Conventionally, composite membranes for reverse osmosis have generally been manufactured by a method of manufacturing a polymer exhibiting reverse osmosis properties and casting the polymer into a porous membrane. In this method, monomers are once polymerized to synthesize a polymer with reverse osmosis properties, reprecipitated and purified, then dissolved in a solvent to prepare a casting solution, coated on a support membrane, and dried. This provides peace of mind during many complicated processes.
本発明者は、このような従来の煩雑な工程を必要としな
い簡略な逆浸透膜の製造法について研究を重ねた結果、
逆浸透性重合体形成用単量体を多孔性支持膜に含浸させ
光重合させることにより容易に製造しうることを見出し
た。As a result of repeated research into a simple manufacturing method for reverse osmosis membranes that does not require such conventional complicated steps, the present inventor has discovered that
It has been found that it can be easily produced by impregnating a porous support membrane with a monomer for forming a reverse osmotic polymer and photopolymerizing it.
すなわち、本発明は、光惠合開始剤を含んだ−官能性単
量体と二官能性単量体の混合物を多孔性支持膜に含浸さ
せ、これに光を照射して単量体を重合させることを特徴
とする逆浸透膜の製造方法を提供するものである。That is, in the present invention, a porous support membrane is impregnated with a mixture of a functional monomer and a difunctional monomer containing a photocoagulation initiator, and the monomers are polymerized by irradiating the porous support membrane with light. The present invention provides a method for manufacturing a reverse osmosis membrane, characterized in that:
不発明の方法に用いられる好ましい一官能性単量体とし
ては、例えば２−ジメチルアミンエチルメタクリレート
、アクリル酸、メタアクリル酸、Ｎ、Ｎ−ジメチルアク
リルアミド、２−ヒドロキシエチルメタクリレート、２
−アクリルアミド−２−メチルプロパンスルホン酸等の
親水性基金有するアクリル系単量体を挙げることができ
るが、その細光重合性を示す二官能性単量体も、もちろ
ん使用可能である。−１：た、二官能性単量体としては
、例えばエチレングリコールジメタクリレート、ジエチ
レングリコールジメタクリレート、４−メタク、ｌＪロ
イルオキシカルコン、Ｎ、Ｎ−（２−ヒドロキシ−３−
メタクリロイルオキシグロピル）ピペラジン等を挙げる
ことができる。Preferred monofunctional monomers used in the inventive method include, for example, 2-dimethylamine ethyl methacrylate, acrylic acid, methacrylic acid, N,N-dimethylacrylamide, 2-hydroxyethyl methacrylate,
Acrylic monomers having a hydrophilic group such as -acrylamide-2-methylpropanesulfonic acid can be mentioned, but of course difunctional monomers exhibiting photopolymerizability can also be used. -1: Examples of difunctional monomers include ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, 4-methacrylate, lJ loyloxychalcone, N,N-(2-hydroxy-3-
Examples include methacryloyloxyglopyl) piperazine.
これら−官能性単量体と二官能性単量体のｆ史用割合Ｑ
ま、逆浸透により排除すべき塩の種類や濃度により適宜
選択されるが、二官能性単量体の量が多すぎると膜透過
流束が小さくなり、少なすぎると溶存塩類の排除率寥低
くなり、逆浸透膜の性能が低下するので好ましくなく、
通常二官能性単量体は一官能性単量ｆ（ζに対し、０．
５〜１５チの範囲量が有利に用いられる。また、−官能
性単量体は単一成分でもよいし２成分以上を組み合わせ
て使用することができ、二官能性単量体も同様ｖｃ１種
又は２棟以上を組み合わせて使用できる。These-functional monomer and difunctional monomer f-historical ratio Q
It is selected as appropriate depending on the type and concentration of salts to be removed by reverse osmosis, but if the amount of bifunctional monomer is too large, the membrane permeation flux will be small, and if it is too small, the removal rate of dissolved salts will be low. This is undesirable because it reduces the performance of the reverse osmosis membrane.
Generally, difunctional monomers are monofunctional monomers f(ζ, 0.
Amounts ranging from 5 to 15 inches are advantageously used. Moreover, the -functional monomer can be used as a single component or in combination of two or more components, and the difunctional monomer can similarly be used in combination of one type of VC or two or more components.
また、これら単量体中に含有せしめる好ましい光重合開
始剤としては、例えば２，２−ジエトギシアセトフエノ
ン、ベンゾイン、ベンゾフェノン、ベンゾインイソプロ
ピルエーテル、２，２−ジメトキシ２−フェニルアセト
フェノン等の光増感剤を挙げることができる。このうち
、液状の上記単量体類に溶解し得る２、２−ジエＩ・キ
シアセトフェノンが特に好都合である。Preferred photopolymerization initiators to be included in these monomers include, for example, 2,2-diethoxyacetophenone, benzoin, benzophenone, benzoin isopropyl ether, and 2,2-dimethoxy-2-phenylacetophenone. Examples include sensitizers. Of these, 2,2-die I xyacetophenone, which is soluble in the liquid monomers mentioned above, is particularly advantageous.
不発明方法に用いられる多孔性支持膜は、多孔性の膜状
物であって、例えば多孔性ポリプロピレンフィルムのよ
うな多孔性高分子フィルムが有利に使用される。本発明
においては、このような多孔性支持膜に、まず光重合開
始剤を含有させた単量体混合液を含浸し、好ましくは空
気非接触条件下に光照射して単量体を重合させるが、例
えばフッ素樹脂板に多孔性高分子フィルムを載せ、これ
に単量体混合液を含浸させたのち、その上を透明なフィ
ルムで覆い、次いで例えばローラーなどで上側からしご
くように空気を追い出して密着させ、光照射処理される
。空気を遮断するための透明なフィルムは、単量体に溶
解、膨潤なとする素材は好ましくなく、好都合なものは
透明なポリプロピレンフィルム、ポリエチレンフィルム
、フッ素化エチレン−プロピレン共重合体フィルムナト
テする。The porous support membrane used in the inventive method is a porous membrane-like material, and for example, a porous polymer film such as a porous polypropylene film is advantageously used. In the present invention, such a porous support membrane is first impregnated with a monomer mixture containing a photopolymerization initiator, and the monomers are polymerized by irradiation with light, preferably under air-free conditions. However, for example, a porous polymer film is placed on a fluororesin plate, impregnated with a monomer mixture, and then covered with a transparent film, and then the air is squeezed out from above using a roller or the like. It is then placed in close contact with the other parts and subjected to light irradiation treatment. The transparent film for blocking air is not preferably a material that dissolves or swells in monomers, but suitable materials include transparent polypropylene film, polyethylene film, and fluorinated ethylene-propylene copolymer film.
光照射は、通常高圧水銀灯が有利１ｃ便用され、例えば
１００Ｗの高圧水銀灯では、１０〜１５ｚの距離で透明
フィルム側から光照射させると直ちに重合がはじまり、
多孔性高分子支持フィルノ、中の単量体は容易に重合体
を形成する。この光照射処理は数分〜数十分程度の比較
的短時間に完了するが、好ましくは光照射後に例えば１
００−１１０″Ｃ程度の温度で３〜１０分間熱処理され
る。熱処理後１、カバーした透明フィルムをはがして容
易に逆浸透性複合膜を得ることができる。For light irradiation, a high-pressure mercury lamp is usually advantageously used. For example, with a 100W high-pressure mercury lamp, polymerization starts immediately when the light is irradiated from the transparent film side at a distance of 10 to 15z.
The monomers in the porous polymer support readily form polymers. This light irradiation process is completed in a relatively short time of several minutes to several tens of minutes, but preferably, for example, after light irradiation,
It is heat-treated at a temperature of about 0.00-110"C for 3-10 minutes. After the heat treatment, the covered transparent film is peeled off to easily obtain a reverse osmosis composite membrane.
不発明の方′！Ｅ：においては、前記のように親水性基
を有する一官能性単烙体が有利に使用されるのて゛、例
えばＮ、Ｎ−ジメチルアミンエチルメタクリレ−１・の
よ５な塩基が重合体中に導入されているときは塩酸水溶
液に浸し、またアクリル酸を用いたような場合には水酸
ｆヒナトリウムの水溶液に浸すなどして高分子塩にする
ことが好ましく、このような処理により透水性を向上さ
せることができる。Non-inventive person'! In E:, as mentioned above, a monofunctional monohydric substance having a hydrophilic group is advantageously used. When acrylic acid is used, it is preferable to immerse it in an aqueous solution of hydrochloric acid, and in cases where acrylic acid is used, it is preferable to make it into a polymer salt by immersing it in an aqueous solution of arsenium hydroxide. can improve sex.
本発明の方法は、従来の逆浸透膜の製造方法【おけるよ
うなはん雑な工程がなく、取扱いや操作が僅めで容易で
あり、しかもＬｌ’ Ｌ；一体のロス士大幅に減少させ
ることができるので工業的に有利である。また、不発明
の方法により得られる逆浸透膜は、従来゛の逆、侵透膜
の有する溶存塩排除率、例えば０．３係塩化ナトリウム
水心液に適用した場合の排除率７０〜８０係程度に匹敵
する逆浸透性複合膜し、充分実用に供しうるものである
。The method of the present invention does not involve the complicated steps of the conventional reverse osmosis membrane manufacturing method, is easy to handle and operate, and can significantly reduce the total loss. It is industrially advantageous. In addition, the reverse osmosis membrane obtained by the uninvented method has a dissolved salt rejection rate of 70 to 80 when applied to a sodium chloride solution of 0.3, which is the same as that of conventional reverse osmosis membranes. It is a reverse osmosis composite membrane comparable in degree and can be put to practical use.
不発明の方法により得られた逆浸透膜は、従来品と同様
にかん水の淡水化、無機塩水溶液からの脱塩水の製造Ｋ
Ｍ用であ、す、またイオン交換膜として使用することも
できる。The reverse osmosis membrane obtained by the uninvented method can be used for desalination of brine and production of desalinated water from an aqueous inorganic salt solution in the same way as conventional products.
It can also be used as an ion exchange membrane.
以下、実施例Ｖこより不発明をさらに詳ｉ１．ｌＩＩに
説明する。Hereinafter, the non-invention will be explained in more detail from Example V i1. lII will explain.
実施例１
２−ジメチルアミンエチルメタクリレ−１−（ＤＡＭと
略記する）の１．□ｃｃ に所定量の二官能性単量体す
なわち４−メタクリロイルオキシカルコン（Ｍ（１り又
はエチレングリコールジメククリレート（ＥＧ）及び光
重合開始剤として、２，２−ジェトキシアセトフェノン
（ＥＡＰ） ０ 、０２ ＣＯ’！ｉ７混合して単量体
混合液を調製した。この液を多孔性ポリプロピレン膜（
Ｏｅｌｇａａｄ ２４００、疎水性、直径７．５ｏ＋＋
）に含浸さぜ、その含浸膜全テフロン板と透明ポリプロ
ピレンフィルムに挟み、透明ポリプロピレンフィルムの
上からノ・ンドローラーでしごくようにして空気を追い
出し密着させた。次いで、１００Ｗ高圧水銀灯により１
５＞の距離から透明ポリプロピレン１１１１１に向′り
て１０分間光照射を行い、照射後、１１０″Ｇで３分間
熱処理を施し、水中で膜をはがした。得られた複合膜を
稀塩酸水性液（濃塩酸２Ｃ（］７、（ＩＱｃｃの水で稀
釈した水溶液）に浸漬して一夜放置した。この段階でジ
メチルアミノ基は塩酸塩の形になり、膜はいくらか膨潤
して広がった。水で子分洗滌した後、この膜をＡｂｃｏ
ｒ ＲＯ−３型逆浸透旧（１ｓｏｃｃ容量）を用い、０
．３係の塩化す） ＩＪウム水溶液を用いて逆浸透実験
を行った。操作圧は７０に９ ／ ｃｎｉ、有効膜面積
は３０ 、２ ｃｎｉである。Example 1 1 of 2-dimethylamine ethyl methacrylate-1- (abbreviated as DAM). A predetermined amount of a bifunctional monomer, namely 4-methacryloyloxychalcone (M(1) or ethylene glycol dimecacrylate (EG)) and 2,2-jethoxyacetophenone (EAP) as a photopolymerization initiator, are added to □cc. , 02 CO'!i7 were mixed to prepare a monomer mixture. This solution was spread over a porous polypropylene membrane (
Oelgaad 2400, hydrophobic, diameter 7.5o++
), the entire impregnated film was sandwiched between a Teflon plate and a transparent polypropylene film, and the transparent polypropylene film was squeezed with a roller to expel air and adhere tightly. Then, a 100W high-pressure mercury lamp was used to
Transparent polypropylene 11111 was irradiated with light for 10 minutes from a distance of It was immersed in a solution of concentrated hydrochloric acid 2C (]7, (an aqueous solution of IQcc diluted with water) and left overnight. At this stage, the dimethylamino groups were in the form of hydrochloride, and the membrane swelled and spread out somewhat. After washing the molecules with Abco
r Using RO-3 type reverse osmosis old (1 socc capacity), 0
．． A reverse osmosis experiment was conducted using an aqueous solution of IJium chloride (Section 3). The operating pressure is 70.9/cni and the effective membrane area is 30.2 cni.
ＭＣ又はＥＧの匣用量を変えて製造した種々の逆浸透膜
について得た結果全第１表に示す。また、二官能性単量
体を桑畑しない膜を同様に製造し、その測定値を表中に
併記した。The results obtained for various reverse osmosis membranes prepared with varying doses of MC or EG are shown in Table 1. In addition, a membrane without the bifunctional monomer Kuwabata was produced in the same manner, and the measured values are also listed in the table.
実施例２
実施例１において、２−ジメチルアミノエ壬ルメタクリ
レ−１・の代りにアクリル酸を用い、二官能性単量体及
び光重合開始剤（ＫＡＰ）を混合して多孔性膜に含浸し
、実施例１と同様にして光重合膜を作成した。この膜を
５係カセイソーダ水溶液に３０分間浸せきし、塩の形に
すると膨潤して膜は広がった。十分水洗した後、こＯ膜
をカットして逆浸透膜にかげ塩排除率及び流束を測定し
た。その結果を第２表に示す。Example 2 In Example 1, acrylic acid was used instead of 2-dimethylaminoethyl methacrylate-1, and a difunctional monomer and a photoinitiator (KAP) were mixed and impregnated into a porous membrane. A photopolymerized film was prepared in the same manner as in Example 1. This membrane was immersed in a 5% caustic soda aqueous solution for 30 minutes to form a salt, which caused the membrane to swell and spread. After thorough washing with water, the O membrane was cut and passed through a reverse osmosis membrane to measure the salt rejection rate and flux. The results are shown in Table 2.
なお、表中の二官能性単量体ｂｐば、Ｎ、Ｎ−（２−ヒ
ドロキシ′−３−メタクリロイ刀羽−キシフ゛ロビル）
ピペラジンである。In addition, the bifunctional monomers bp, N, N-(2-hydroxy'-3-methacryloyl-xyfilovir)
It is piperazine.
実施例３
２−アクリルアミド−２−メチルプロパンスル＊ ンｅ
０．２１＆、 ’ＭＣ！ ０．０２．！？ ｆ Ｎ、
Ｎ −シ）ｌ −ｆ−ルア クリルアミド２ｃｃｖｃ溶
解させ、その一部をとり、実施例１と同様にして多孔性
ポリプロピレン膜中で光重合させ、逆浸透膜を作成した
。０．３係塩化ナトリウム水溶液に対する塩排除率は７
０ Ｋ９／ ｃｒｌの操作圧で６７係、流束は０．７３
１／ｈｒ・７フ？であった。Example 3 2-acrylamido-2-methylpropanesulfone
0.21 &, 'MC! 0.02. ! ? fN,
2ccvc of N-Si)l-f-ruacrylamide was dissolved, a portion thereof was taken, and photopolymerized in a porous polypropylene membrane in the same manner as in Example 1 to create a reverse osmosis membrane. The salt rejection rate for a 0.3 sodium chloride aqueous solution is 7
67 at operating pressure of 0 K9/crl, flux is 0.73
1/hr・7f? Met.
特許出願人 工業技術院長 石 坂誠 −指定代理人
工業技術院大阪工業技術試験所長内藤−男Patent applicant Makoto Ishizaka, Director of the Agency of Industrial Science and Technology - Designated agent
Osaka Industrial Technology Testing Institute Director, Agency of Industrial Science and Technology Osaka Naito
Claims (1)
量体の混合物を多孔性支持膜に含浸させ、これに光を照
射して単量体を重合させることを特徴とする逆浸透膜の
製造方法。 ２−官能性単量体が親水性基を有するアクリル系単量体
である特許請求の範囲第１項記載の方法。 ３ 多孔性支持膜が多孔性プラスチックフィルムである
特許請求の範囲第１項記載の方法ｇ[Claims] 1. A porous support membrane is impregnated with a mixture of a monofunctional monomer and a difunctional monomer containing a photopolymerization initiator, and the monomers are polymerized by irradiating the membrane with light. A method for manufacturing a reverse osmosis membrane, characterized by: 2. The method according to claim 1, wherein the 2-functional monomer is an acrylic monomer having a hydrophilic group. 3. Method g according to claim 1, wherein the porous support membrane is a porous plastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18637082A JPS5976504A (en) | 1982-10-22 | 1982-10-22 | Production of reverse osmotic membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18637082A JPS5976504A (en) | 1982-10-22 | 1982-10-22 | Production of reverse osmotic membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5976504A true JPS5976504A (en) | 1984-05-01 |
| JPH025446B2 JPH025446B2 (en) | 1990-02-02 |
Family
ID=16187189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18637082A Granted JPS5976504A (en) | 1982-10-22 | 1982-10-22 | Production of reverse osmotic membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5976504A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976897A (en) * | 1987-12-16 | 1990-12-11 | Hoechst Celanese Corporation | Composite porous membranes and methods of making the same |
| US5102552A (en) * | 1987-12-16 | 1992-04-07 | Hoechst Celanese Corporation | Membranes from UV-curable resins |
| JPH0760079A (en) * | 1993-08-24 | 1995-03-07 | Agency Of Ind Science & Technol | Method for manufacturing plasma-treated film |
| JP2011518661A (en) * | 2008-04-08 | 2011-06-30 | フジフィルム・マニュファクチュアリング・ヨーロッパ・ベスローテン・フエンノートシャップ | Membrane preparation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741281A (en) * | 1980-08-25 | 1982-03-08 | Honda Motor Co Ltd | Rear fork for autobicycle |
-
1982
- 1982-10-22 JP JP18637082A patent/JPS5976504A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741281A (en) * | 1980-08-25 | 1982-03-08 | Honda Motor Co Ltd | Rear fork for autobicycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976897A (en) * | 1987-12-16 | 1990-12-11 | Hoechst Celanese Corporation | Composite porous membranes and methods of making the same |
| US5102552A (en) * | 1987-12-16 | 1992-04-07 | Hoechst Celanese Corporation | Membranes from UV-curable resins |
| JPH0760079A (en) * | 1993-08-24 | 1995-03-07 | Agency Of Ind Science & Technol | Method for manufacturing plasma-treated film |
| JP2011518661A (en) * | 2008-04-08 | 2011-06-30 | フジフィルム・マニュファクチュアリング・ヨーロッパ・ベスローテン・フエンノートシャップ | Membrane preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH025446B2 (en) | 1990-02-02 |
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